Correction: Superprotonic conductivity in RbH_2−3y(PO₄)_1−y: a phosphate deficient analog to cubic CsH₂PO₄ in the (1 − x)RbH₂PO₄ − xRb₂HPO₄ system

Abstract

Correction for ‘Superprotonic conductivity in RbH_2−3y(PO₄)_1−y: a phosphate deficient analog to cubic CsH₂PO₄ in the (1 − x)RbH₂PO₄ − xRb₂HPO₄ system’ by Grace Xiong et al., Mater. Horiz., 2023, 10, 5555–5563, https://doi.org/10.1039/D3MH00852E.

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The authors wish to clarify that the atomic displacements reported in Table 1 of the published article correspond to the unitless β_iso values. The U_iso values (Ų) for Rb, P, and O are 0.068(2), 0.054(4), and 0.058(4), respectively.

The corrected form of Table 1 is shown here.

Table 1 Fractional atomic coordinates and displacement parameters of α-Rb_1+xH_2−xPO₄ at x = 0.180 and T = 245 °C. Structure adopts space group Pm3̄m with a = 4.7138(2) Å. The P–O bond distance is 1.51(2) Å. Numbers in parentheses reflect the uncertainty in the final digit(s) of the quoted values

Atom	x	y	z	Site	Occupancy^a	U iso (Å^2)
a Fixed to match global chemistry. b Tied to the Uiso of P by a multiplicative factor of 1.073.
Rb	0	0	0	1a	1	0.068(2)
P	1/2	1/2	1/2	1b	0.85	0.054(4)
O	1/2	0.203(1)	0.375(2)	24l	0.14	0.058(4)^b

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The supplementary information of the published article has also been updated accordingly (Tables S4 and S5).

In addition, please note that the grant number DMR-2118201 mentioned in the Acknowledgements section of the published article is incorrect, it should be replaced with OAC-2118201. The corrected version of the Acknowledgements section is given below.

Acknowledgements

Financial support has been provided by the National Science Foundation (DMR-1807234, OAC-2118201 and DGE-1842165). This work made use of the J. B. Cohen X-Ray Diffraction facility at Northwestern University, supported by the NSF MRSEC program (NSF DMR-1720139). We thank Elise Goldfine for assistance with diffraction measurements.

The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.

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